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Dynamics of matter solitons in weakly modulated optical lattices

Authors
  • Brazhnyi, V. A.
  • Konotop, V. V.
  • Kuzmiak, V.
Type
Published Article
Publication Date
Apr 26, 2004
Submission Date
Feb 18, 2004
Identifiers
DOI: 10.1103/PhysRevA.70.043604
arXiv ID: cond-mat/0402480
Source
arXiv
License
Unknown
External links

Abstract

It is shown that matter solitons can be effectively managed by means of smooth variations of parameters of optical lattices in which the condensate is loaded. The phenomenon is based on the effect of lattice modulations on the carrier wave transporting the soliton and that is why is well understood in terms of the effective mass approach, where a particular spatial configuration of the band structure is of primary importance. Linear, parabolic, and spatially localized modulations are considered as the case examples. It is shown that these defects can originate accelerating and oscillating motion of matter solitons as well as simulate soliton interaction with attractive and repulsive defects.

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